long startTime = System.currentTimeMillis();
        Arrays.sort(arrs);
        System.out.println(Arrays.toString(arrs));
        for (int min = 0, max = arrs.length - 1; min < max; min++, max--) {
            int temp = arrs[min];
            arrs[min] = arrs[max];
            arrs[max] = temp;
        }
        long endTime = System.currentTimeMillis();
        System.out.println(Arrays.toString(arrs));
        System.out.println("耗时:" + (endTime - startTime));